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激光引信复合时刻鉴别法的漂移误差补偿

Compensation of Drift Error in Identification Method of Laser Fuze Composite Moment

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摘要

针对激光引信常用的恒比定时时刻鉴别法的饱和漂移误差问题, 提出了一种前沿判别与恒比定时复合的时刻鉴别方法及其误差补偿模型。建立了恒比定时时刻鉴别的漂移误差模型, 分析了饱和漂移误差随回波信号理论峰值电压的变化规律; 提出了基于复合时刻鉴别法的漂移误差补偿方法, 建立了复合时刻鉴别的漂移误差补偿数学模型, 得到了修正的脉冲激光测距公式, 并进行了测距精度验证实验。结果表明, 复合时刻鉴别及误差补偿修正方法可有效减小系统误差, 测距精度可控制在±0.3 m以内。

Abstract

Aiming at the saturation drift error occurring in the identification method of the constant ratio timing which is commonly used in laser fuze, an identification method of the composite moment between the front edge discrimination and the constant ratio timing and its error compensation model are proposed. The drift error model for the identification of the constant ratio timing is established and the variation law of the saturation drift error with the theoretical peak voltage of echo signals is analyzed. The compensation method of drift errors based on the composite moment identification method is proposed, and a mathematical model for compensating drift errors in the identification of the composite moment is established. The modified pulsed laser ranging formula is obtained and the verification experiment of the measurement precision is carried out. The results show that, the system errors can be effectively reduced by the composite moment identification and the error compensation correction methods and the ranging precision can be controlled within ±0.3 m or less.

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中图分类号:TN248.4

DOI:10.3788/cjl201845.1004002

所属栏目:测量与计量

基金项目:国家自然科学基金(51709147)

收稿日期:2018-03-15

修改稿日期:2018-05-07

网络出版日期:2018-05-22

作者单位    点击查看

查冰婷:南京理工大学智能弹药技术国防重点学科实验室, 江苏 南京 210094南京理工大学常熟研究院有限公司, 江苏 常熟 215513
王德利:南京理工大学智能弹药技术国防重点学科实验室, 江苏 南京 210094
张乐琪:南京理工大学智能弹药技术国防重点学科实验室, 江苏 南京 210094
谢克峰:湖北航天技术研究院总体设计所, 湖北 武汉 430034

联系人作者:查冰婷(zhabingting@163.com)

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引用该论文

Zha Bingting,Wang Deli,Zhang Leqi,Xie Kefeng. Compensation of Drift Error in Identification Method of Laser Fuze Composite Moment[J]. Chinese Journal of Lasers, 2018, 45(10): 1004002

查冰婷,王德利,张乐琪,谢克峰. 激光引信复合时刻鉴别法的漂移误差补偿[J]. 中国激光, 2018, 45(10): 1004002

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